CD54NP-181KC Equivalent & Substitute Parts

Part Overview

The CD54NP-181KC is a 180 µH unshielded surface mount inductor manufactured by Sumida America Components Inc. This component is designed for applications requiring fixed inductance with a current rating of 380 mA and a maximum DC resistance of 1.38 Ohm. The part operates across a temperature range of -40°C to 100°C and is classified as Active product status. Equivalent and substitute parts are identified when design requirements necessitate alternative sourcing, inventory availability, or extended operational specifications while maintaining core electrical and mechanical compatibility.

Substiute Parts

CD54NP-181KC

Sumida America Components Inc.In Stock: 9134CD54NP-181KC Datasheet

Current PartRFQ

SDR0604-181KL

Bourns Inc.In Stock: 2608SDR0604-181KL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD54NP-181KC is permissible with the SDR0604-181KL based on the following electrical and mechanical parameters:

Critical Matching Parameters:

• Inductance value: 180 µH (identical)
• Inductance tolerance: ±10% (identical)
• Current rating: 380 mA (identical)
• DC resistance: 1.38 Ohm Max (identical)
• Core material: Ferrite (identical)
• Shielding configuration: Unshielded (identical)
• Mounting type: Surface Mount (identical)
• RoHS compliance: ROHS3 Compliant (identical)
• Moisture sensitivity level: 1 (Unlimited) (identical)

Allowable Variations:

• Operating temperature range: CD54NP-181KC operates -40°C to 100°C; SDR0604-181KL operates -40°C to 125°C (extended upper limit acceptable for substitution)
• Physical dimensions: Minor variations within nonstandard package classification
• Manufacturer: Sumida America Components Inc. (main part) versus Bourns Inc. (substitute)

Parameter Comparison

Engineering Selection Recommendations

Both the CD54NP-181KC and SDR0604-181KL are classified as Active product status and maintain ROHS3 compliance with identical moisture sensitivity ratings. The SDR0604-181KL provides an extended operating temperature range to 125°C, which accommodates applications requiring higher thermal performance without compromising the specified electrical characteristics. Selection between these parts should be based on inventory availability, lead time requirements, and thermal environment specifications of the target application. Both components satisfy identical electrical and mechanical substitution criteria for 180 µH fixed inductance applications at 380 mA current rating.

Frequently Asked Questions (FAQ)

Q: Can the SDR0604-181KL replace the CD54NP-181KC in all applications?

A: Yes, the SDR0604-181KL is electrically and mechanically compatible as a direct substitute. Both components share identical inductance (180 µH), tolerance (±10%), current rating (380 mA), DC resistance (1.38 Ohm Max), core material (Ferrite), shielding (Unshielded), and mounting type (Surface Mount). The SDR0604-181KL provides an extended operating temperature range to 125°C compared to the CD54NP-181KC at 100°C maximum.

Q: Are there physical dimension differences between these parts?

A: Minor dimensional variations exist within the nonstandard package classification. The CD54NP-181KC measures 0.228" L x 0.205" W x 0.191" H (5.80mm x 5.20mm x 4.85mm), while the SDR0604-181KL measures 0.228" L x 0.228" W x 0.189" H (5.80mm x 5.80mm x 4.80mm). These variations are compatible for surface mount applications with standard PCB layout tolerances.

Q: Do both parts meet the same compliance standards?

A: Yes, both the CD54NP-181KC and SDR0604-181KL are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited). Both carry ECCN EAR99 and HTSUS 8504.50.4000 classifications.

Q: What is the difference in saturation current between these parts?

A: The CD54NP-181KC does not specify a saturation current value. The SDR0604-181KL specifies a saturation current (Isat) of 500 mA, which exceeds the 380 mA current rating of both components and does not affect substitution compatibility.

Q: Can I use the SDR0604-181KL in applications limited to -40°C to 100°C?

A: Yes, the SDR0604-181KL operates within the -40°C to 100°C range specified for the CD54NP-181KC. The extended temperature capability of the SDR0604-181KL to 125°C does not restrict its use in lower temperature applications.